All it does is time the activation of the relays that control the gas flow, power, and wire feeder, so [Brett] decided to use an Arduino instead. The welders control circuit runs at 24V ...

And potentially outside the atmosphere, to wit: we present his reaction control gas thruster-controlled drone ... [Tom] had to improvise thruster control; an Arduino watches the throttle signals ...

What happens when an engineer builds a smart garden? This Arduino-powered system automates watering while collecting real-time data on soil moisture, temperature, and sunlight. From sensor ...